The Earth is four and a half billion years old, so why they started appearing then is unknown, as is the mechanism to make ...

Two viewers experience the alien invasion classic starring Will Smith, Jeff Goldblum, and Bill Pullman for the first time.

The short answer is that there’s nothing to disclose. But that doesn’t mean we won’t make contact with extraterrestrial life ...

Billions of years ago, asteroids hitting Earth deposited metals crucial to technological advancement. Could we find even more of these metals by mining asteroids in space? Learn more in this clip from ...

A Chinese probe is set for a historic touchdown on asteroid Kamoʻoalewa, which may have been blasted away from Earth’s Moon ...

Alien director Ridley Scott eventually returned to the franchise, but couldn't complete his ambitious plans. Here's what his ...

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...

Add Yahoo as a preferred source to see more of our stories on Google. Left to Right: Steven Yeun in "Nope," the alien in Steven Spielberg's "E.T." and Scarlett Johansson in "Under the Skin" (Universal ...

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this week, with astrophysicists in the UK and Australia stressing that while ...

Left to Right: Steven Yeun in "Nope," the alien in Steven Spielberg's "E.T." and Scarlett Johansson in "Under the Skin" (Universal Pictures / A24) It didn’t take long for stories about ...

Caltech researchers have identified a novel chemical reaction that could explain the formation of the building blocks of DNA and RNA, the molecules that encode all of life's functions. The work is an ...